Red copper inventory may end the trend of continuous decline. With the increase of production restriction of steel enterprises and the pressure of demand, the continuous decline of iron ore port inventory may end. In addition, according to the new statistics of * *, which is one day lower than that before the National Day and is on the high side of history. The steel mill said that at present, the iron ore inventory basically meets the production requirements. Considering the future production reduction and restriction, the steel mill is not willing to replenish the inventory.The room temperature tensile strength of the annealed red copper sheet is ~ kgf/mm, the elongation is ~%, and the Brinell hardness (HB) is ~Weksher,Continuous casting and rolling method: This production method is to directly cast hollow copper billets after electrolytic copper smelting, and use planetary rolling method to produce copper tubes.The market price of Zhengzhou copper bars is basically stable, and the shipment is not good. In terms of tube blank: today, Shandong Luli tube blank slightly reduced by yuan,WeksherTinned copper bar, and the current mainstream ex factory price is - yuan. In terms of pipe plant: Linyi Pipe Plant locked the price for a week. With a stable market mentality, the factory price of hot rolled seamless pipes is now between - yuan. On the market side: with the arrival of the off-season, traders generally ship goods at a high price. Replenishment is mainly to maintain the existing inventory, and there is no large replenishment plan. The demand is sluggish, and the market price of Zhengzhou copper bar is expected to be stable and declining.Changshu City,[] Welding process of copper pipe Clean the end and seven ports of steel pipe with steel wool. Do not use abrasive cloth or abrasive paper to clean, because it will affect the clean interface and result in poor welding effect.On November , the market price of Cangzhou copper bar was stable. According to the monitoring data of Lange Iron and Steel s cloud business platform, the market price of * mm in Jianlong is yuan the market price of * mm in Linyi is yuan, the market price of * mm in Yuanhua is yuan, the market price of * mm in Juneng is yuan, the market price of * mm in Baotou Steel is yuan, and the market price of * mm in Juneng thermal expansion is yuan.Three of the five major application fields of copper plate, copper bar and copper tube: copper is used to manufacture, and gun parts in the national defense industry. Every million rounds of copper are produced, - tons of copper are needed.

It is said that due to the optimistic future and tight resources, some iron plants do not take orders temporarily. The steel mills in Liaoning have increased their enthusiasm for purchasing steel. The iron mills have delivered well, and the price of raw materials has risen, so the iron price has risen. The iron mills have a high enthusiasm for producing steel, so there is not much cast iron resources, and the price has risen. A few steel mills in Tangshan began to purchase a small amount of steel for smelting, and most steel mills are still on the lookout for inquiry. Under the background of increasing cost and gradual release of demand, the pig iron market is performing well and is expected to continue to operate strongly in the short term.Brass tube Soft copper tube is called hose, and the tube is used to replace the hard one, so soft copper is widely used. Besides being in a straight line, you can also have coils and coils in the form of long advantages. When used at the connection point is long,WeksherRed copper tube, cut according to the free length, so as to avoid leakage of copper tube brass welding. Soft copper tube requires local bending of air conditioner, refrigerator, and it can also be used normally at low temperatures.Remove the flame. If the filler metal does not melt, continue to heat the joint and try again. The melted filler metal is sucked into the casing port according to the capillary effect until a complete filler metal ring appears on the casing port. Remove the flame Pay special attention not to let the flame directly contact the filler metal. It should be the heat at the joint that melts the filler metal. In order to clean the copper pipe, the welding flux must have a degree of corrosivity, and shall be cleaned after brazing. The so-called & quot; self-cleaning& quot; fluxes are generally not recommended because of their corrosivity.production costs,The room temperature tensile strength of the annealed red copper sheet is ~ kgf/mm, the elongation is ~%, and the Brinell hardness (HB) is ~According to * * new data, in September , China s imported iron ore * * * broke through the million ton mark, reaching million tons a record high; From January to September,Weksher316L stainless steel coiled plate, China s iron ore import increased by % to million tons, and the annual import volume is expected to exceed billion tons. However, judging from the shipment of imported ores after the National Day, due to the rapid declinecline in iron ore prices, the iron ore price index once fell below $, which reduced the enthusiasm for the shipment of imported ores. In addition, environmental protection inspection has become stricter and the supply of some domestic mines has been greatly affected. The current operating rate of domestic mines is percentage points lower than the previous peak, which is likely to decline further in the future.At the opening this morning, the market price of Zhengzhou copper bar was basically stable. According to the monitoring data of the Lange cloud business platform, the current market price of * mm Linyi copper bar was yuan (ton price, the same below), and the * mm copper bar Henan copper bar was yuan.

The second of the five application fields of red copper plate T red copper row and red copper tube: copper is widely used in the chemical industry to manufacture vacuum vessels, distillation pots, brewing pots, etc.Superior quality,The conductive production of copper tube is the latest method for this method. It is the production of nanocrystalline copper materials with conductivity. Because this raw material is very special, it is a copper material produced by using nanotechnology, and copper ions can be separated by conductivity, so that copper tubes can be produced with the separated copper ions. This method is very complex, requires high technology and new equipment, so only advanced foreign countries can use this production method.Heat and insert the copper tube and sleeve, and move the flame nozzle back and forth continuously between two points. Do not touch the flame directly with the flux.If the corrosion on the copper surface is found to be slight, it can be erased with linen copper wire, but it is not recommended to apply oil for preservation.Weksher,The copper tube shall be heated and welded first, and then the joint shall be heated until the heated part turns dark red. At this time, when the filler metal contacts the tube, stability and performance, and can save maintenance.The market price of Zhengzhou copper bars is basically stable, and the shipment is not good. In terms of tube blank: today, Shandong Luli tube blank slightly reduced by yuan, and the current mainstream ex factory price is - yuan. In terms of pipe plant: Linyi Pipe Plant locked the price for a week. With a stable market mentality, the factory price of hot rolled seamless pipes is now between - yuan. On the market side: with the arrival of the off-season, traders generally ship goods at a high price. Replenishment is mainly to maintain the existing inventory, and there is no large replenishment plan. The demand is sluggish, and the market price of Zhengzhou copper bar is expected to be stable and declining.